ConvertePST is a tool for reading messages in Microsoft Outlook 2000/2003 PST files and exporting messages to RFC email formats for use with other email software. It was designed to be used for migrating email away from Exchange servers.

OpenLegacy is a powerful, lightweight, extensible, and flexible Java-based API framework and tools for building applications and services over existing legacy applications. This is commonly known as legacy modernization or application modernization.